Re: [PATCH 1/5] dt/bindings: Add binding for the DA8xx MUSB driver
From: Sergei Shtylyov <hidden>
Date: 2016-02-11 13:53:35
Hello. On 2/11/2016 2:01 PM, Petr Kulhavy wrote:
This adds DT support for the TI DA8xx/OMAP-L1x/AM17xx/AM18xx MUSB driver.
This patch describes bindings, not adds support.
quoted hunk
Signed-off-by: Petr Kulhavy <petr-Qh/3xLP0EvwAvxtiuMwx3w@public.gmane.org> --- .../devicetree/bindings/usb/da8xx-usb.txt | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/da8xx-usb.txtdiff --git a/Documentation/devicetree/bindings/usb/da8xx-usb.txt b/Documentation/devicetree/bindings/usb/da8xx-usb.txt new file mode 100644 index 0000000..62dcc51 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/da8xx-usb.txt@@ -0,0 +1,47 @@ +TI DA8xx MUSB +~~~~~~~~~~~~~ +For DA830 and DA850 platforms.
I'd suggest "DA8xx/OMAP-L1x/AM17xx/AM18xx" again.
+ +Required properties: +~~~~~~~~~~~~~~~~~~~~ + - compatible : Should be set to "ti,da830-musb". + + - reg: Offset and length of the USB controller register set. + + - interrupts: The USB interrupt number. + + - interrupt-names: Should be set to "mc". + + - dr_mode: The USB operation mode. Should be one of "host", "peripheral" or "otg". + + - mentor,power : Specifies the maximum current in milliamperes the controller can + supply in host mode. + + - ti,phy20-refclock-frequency : Integer. Defines the USB 2.0 PHY reference clock input
Maybe "ti,usb2-phy-refclock-frequency"?
+ frequency in Hz in case the clock is generated by the internal PLL. + Supported values are 12MHz, 13MHz, 19.2MHz, 20MHz, 24MHz, 26MHz, 38.4MHz, 40MHz, 48MHz + + +Optional properties: +~~~~~~~~~~~~~~~~~~~~ + - ti,phy20-clkmux-pll: Boolean. Defines the USB 2.0 PHY reference clock source.
Maybe "ti,usb2-phy-clkmux-pll"?
+ If present the internal PLL is used as a clock source, otherwise the external
+ USB_REFCLKIN pin is used.
+
+Example:
+
+ usb20: usb@1e00000 {
+ compatible = "ti,da830-musb";
+ reg = <0x00200000 0x10000>;
+ interrupt-parent = <&intc>;
+ interrupts = <58>;
+ interrupt-names = "mc";
+
+ dr_mode = "host";
+ mentor,power = <500>;
+
+ ti,phy20-clkmux-pll;
+ ti,phy20-refclock-frequency = <24000000>;
In principle these 2 should belong to the USB PHY subnode...
[...]
MBR, Sergei
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